MANCHESTER United fans plan to stage a lightning demonstration at Old Trafford if Malcolm Glazer makes a second takeover bid for the club.

The Not for Sale campaign has urged Reds to gather in the car park opposite the forecourt on Sir Matt Busby Way as soon as news comes through of any proposal by the American tycoon. United fans staged a similar demo last month.

An Independent Manchester United Supporters Association statement said: "Glazer's formal bid for Manchester United is expected any day now and we must leave the board in no doubt about the strength of feeling against his proposed takeover.

"The Not For Sale coalition - representing IMUSA, Shareholders United and the fanzines - is asking all supporters to repeat the successful demonstration held outside Old Trafford last month."

It continued: "The plan will be similar to last month's demonstration. The day the bid goes in, arrive for 5pm, or as soon as you can afterwards, at the car park opposite Sir Matt's statue.

"Sound your car horns, bring banners and flags, sing your heart out for our club, and bring along anyone you know who cares - this could be our last chance to put a stop to Glazer once and for all."

IMUSA has also planned a week of "activities" to coincide with the expected bid, which began on Monday by targeting Glazer's law firm Allen & Overy.

The firm, which has been advising Glazer on the bid, received hundreds of abusive emails and bogus deliveries last month when their involvement was revealed.

Today their focus switched to investment bankers JP Morgan, who are helping to finance Glazer's proposal.

IMUSA chair Jules Spencer said: "IMUSA does not condone threats to anyone, but all parties should be aware that any perceived gain they hope to achieve by being involved with this bid comes with a degree of pain."